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Old 03-28-2019, 02:54 PM   #5
isotopesope
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Quote:
Originally Posted by mitch808 View Post
I need to drill a number of holes in hardened steel aka bumper beams. Can anyone recommend some good affordable solutions? Ive read about using carbide masonry bits or carbide glass/tile bits. Buying a dedicated set of carbide bits is about 10x the cost...
did you get your holes drilled? ba dum tah!

i'm quite late to the thread, but i would recommend a cobalt coated drill (HSCO), be sure to center punch the locations so the drill doesn't walk, and use lots of cutting oil. yeah, you can definitely use a tungsten carbide tipped masonry drill, but a true carbide drill should NEVER be used in a hand drill or even a drill press. they are too fragile for that. those are really for CNC use only.
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